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This file.txt contains:
"filename","5020","bw","10" "filename2","2048","bw","11" "filename3","1024","wb","12"
String address[]=loadStrings("file.txt");
for(i=0;i<file.length;i++)
println(address[i]);
prints to console:
"filename","5020","bw","10"
"filename2","2048","bw","11"
"filename3","1024","wb","12"
I want to create a 2D array where
list[0][0]="filename"
list[0][1]="5020"
list[0][2]="bw"
list[0][3]="10"
list[1][0]="filename2"
list[1][1]="2048"
etc.
But can't figure out sytntax to get list[][]=split(address[0-3],',') to put elements in array
String list[]=split(address[0],','); works for one line of address
but can't get the 2D array to read in
Tryed String list[][]=split(address[0-2],',') in for loop but get
can't convert String[] to String[][]
thanks for any help
Answers
whats the difference between String [] list and String list[] or String [][] list and String list[][]?
ok, got loaded string in to String list[] with split(file[i],',') then in array of [10][4] 10 lists of 4 items per index in array Now wanna convert select strings to int and tryed strthresh=fileitem[i][1].substring(0,2); and get null pointer error!
have array of strings list[10][4] list[0][1]="10%" want just the "10" so list[0][1].substring(0,2) should give "10" but get null pointer error!
Since it seems a ".csv" file, why don't you simply use loadTable() in place of loadStrings()?
https://Processing.org/reference/loadTable_.html
I got it working except for string to int conversion strthresh="10" This print(strthresh) prints "10" But... thresh=int(strthresh) thresh=parseInt(strthresh) thresh=Integer.parseInt(strthresh) All the above give 0 valuse for thresh!
I got it. substring was 0,2 needed to be 1,3 never mind